PIE GRAPHSNoah Holihan and Kyle Wang

What is a Pie Graph?

A pie graph is a type of graph in which a circle is divided into sectors that each represent a proportion of the whole. This graph would be chosen if you would wanted to see the percentage of a whole group.

Example

http://www.webquest.hawaii.edu/kahihi/mathdictionary/C/circlegraph.php

Data

The data that is necessary to make the graph is the total number of the certain subject and the total number for each sector in order to find the percentages for the graph.

12%

19%

25%12%

31%

Number of Sports Played in a Year by Honors Algebra Stu-

dents

Zero One Two Three

Four+

Explanation

Step 1: Collect data from students in Honors AlgebraStep 2: Put data into Microsoft Excel and create a pie graph with the percentagesStep 3: Transfer pie graph from excel onto the PowerPoint documentStep 4: Label each section correctly with each category

Problem

If ten more students came into the class how many would you expect to play at least three sports in a year?

Advantages

Advantage 1: You can visually see how many sports are played in a year by the students of Honors Algebra.Advantage 2: Easy to compare each section with one another.

Disadvantages

Disadvantage 1: Not easy to compare with other types of data.Disadvantage 2: Does not work with all types of data. Ex: y=2x+4

Bibliography

http://www.google.com/search?hl=en&safe=active&q=pie%20chart%20definition&bav=on.2,or.r_gc.r_pw.r_qf.&bvm=bv.42080656,d.dmQ&biw=1024&bih=673&wrapid=tlif136059830962411&surl=1&um=1&ie=UTF-8&sa=N&tab=iw&ei=7hUZUbmbOJLO0QHhuIHwCA

http://www.webquest.hawaii.edu/kahihi/mathdictionary/C/circlegraph.php